OneMonroe’s Metric Buna O-Rings are engineered to provide reliable sealing performance across a variety of industrial and commercial applications. Made from high-quality Buna-N (Nitrile) rubber, these O-rings are known for their excellent resistance to oils, fuels, and other petroleum-based products, making them ideal for use in environments where durable, leak-proof seals are essential. Buna-N’s resilient properties allow it to maintain its integrity even in challenging temperatures, ranging from -40°F to 250°F, ensuring these O-rings can withstand both low and high-stress conditions with ease. With a broad range of metric sizes available, OneMonroe ensures you’ll find the right fit for your exact specifications.
Our Metric Buna O-Rings are crafted to offer outstanding resistance to abrasion and tearing, providing long-lasting performance in rigorous applications. This makes them well-suited for automotive, aerospace, marine, and hydraulic systems, as well as in general maintenance and repair settings. The unique chemical composition of Buna-N allows these O-rings to endure pressure and friction over extended periods without compromising their sealing capabilities, making them a reliable choice for static and dynamic sealing tasks. Each O-ring is manufactured to precise industry standards, ensuring a dependable fit and function in every installation.
With OneMonroe, you’re getting more than just a product; you’re receiving a commitment to quality and expertise. Our team is dedicated to supporting your projects with high-quality metric Buna O-Rings that meet both industry standards and specific customer requirements. We provide technical support to help you select the best O-ring for your application, offering detailed product specifications and guidance. Trust OneMonroe to deliver durable, efficient, and cost-effective sealing solutions tailored to meet the demands of your unique projects.
For more information, please see: Comparison Properties Chart, PTFE Encapsulated O-rings, Material Shelf Life, and O-ring Groove Design Chart.
Item # |
IntegrationID |
Type |
Material |
Cross Reference |
Cross Section Width |
Durometer |
Inside Diameter |
Product Guides |
|---|---|---|---|---|---|---|---|---|
| 59.5 X 6 B-70 |
IntegrationID
N/A 124153 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 6.00 mm | Durometer N/A 70 | Inside Diameter N/A 59.50 mm | Product Guides N/A Seal Guides |
| 59.5 X 6 B-90 |
IntegrationID
N/A 124154 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 6.00 mm | Durometer N/A 90 | Inside Diameter N/A 59.50 mm | Product Guides N/A Seal Guides |
| 60x6.00B70 |
IntegrationID
N/A 124155 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 6.00 mm | Durometer N/A 70 | Inside Diameter N/A 60.00 mm | Product Guides N/A Seal Guides |
| 60 X 6 B-90 |
IntegrationID
N/A 124156 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 6.00 mm | Durometer N/A 90 | Inside Diameter N/A 60.00 mm | Product Guides N/A Seal Guides |
| 61x6.00B70 |
IntegrationID
N/A 124157 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 6.00 mm | Durometer N/A 70 | Inside Diameter N/A 61.00 mm | Product Guides N/A Seal Guides |
| 61 X 6 B-90 |
IntegrationID
N/A 124158 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 6.00 mm | Durometer N/A 90 | Inside Diameter N/A 61.00 mm | Product Guides N/A Seal Guides |
| 62x6.00B70 |
IntegrationID
N/A 124159 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 6.00 mm | Durometer N/A 70 | Inside Diameter N/A 62.00 mm | Product Guides N/A Seal Guides |
| 62 X 6 B-90 |
IntegrationID
N/A 124160 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 6.00 mm | Durometer N/A 90 | Inside Diameter N/A 62.00 mm | Product Guides N/A Seal Guides |
| 63x6.00B70 |
IntegrationID
N/A 124161 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 6.00 mm | Durometer N/A 70 | Inside Diameter N/A 63.00 mm | Product Guides N/A Seal Guides |
| 63 X 6 B-90 |
IntegrationID
N/A 124162 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 6.00 mm | Durometer N/A 90 | Inside Diameter N/A 63.00 mm | Product Guides N/A Seal Guides |
| 64x6.00B70 |
IntegrationID
N/A 124163 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 6.00 mm | Durometer N/A 70 | Inside Diameter N/A 64.00 mm | Product Guides N/A Seal Guides |
| 64 X 6 B-90 |
IntegrationID
N/A 124164 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 6.00 mm | Durometer N/A 90 | Inside Diameter N/A 64.00 mm | Product Guides N/A Seal Guides |
| 65x6.00B70 |
IntegrationID
N/A 124165 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 6.00 mm | Durometer N/A 70 | Inside Diameter N/A 65.00 mm | Product Guides N/A Seal Guides |
| 65 X 6 B-90 |
IntegrationID
N/A 124166 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 6.00 mm | Durometer N/A 90 | Inside Diameter N/A 65.00 mm | Product Guides N/A Seal Guides |
| 66x6.00B70 |
IntegrationID
N/A 124167 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 6.00 mm | Durometer N/A 70 | Inside Diameter N/A 66.00 mm | Product Guides N/A Seal Guides |
| 66 X 6 B-90 |
IntegrationID
N/A 124168 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 6.00 mm | Durometer N/A 90 | Inside Diameter N/A 66.00 mm | Product Guides N/A Seal Guides |
| 67x6.00B70 |
IntegrationID
N/A 124169 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 6.00 mm | Durometer N/A 70 | Inside Diameter N/A 67.00 mm | Product Guides N/A Seal Guides |
| 67 X 6 B-90 |
IntegrationID
N/A 124170 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 6.00 mm | Durometer N/A 90 | Inside Diameter N/A 67.00 mm | Product Guides N/A Seal Guides |
| 68x6.00B70 |
IntegrationID
N/A 124171 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 6.00 mm | Durometer N/A 70 | Inside Diameter N/A 68.00 mm | Product Guides N/A Seal Guides |
| 68 X 6 B-90 |
IntegrationID
N/A 124172 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 6.00 mm | Durometer N/A 90 | Inside Diameter N/A 68.00 mm | Product Guides N/A Seal Guides |
| 69x6.00B70 |
IntegrationID
N/A 124173 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 6.00 mm | Durometer N/A 70 | Inside Diameter N/A 69.00 mm | Product Guides N/A Seal Guides |
| 69 X 6 B-90 |
IntegrationID
N/A 124174 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 6.00 mm | Durometer N/A 90 | Inside Diameter N/A 69.00 mm | Product Guides N/A Seal Guides |
| 70x6.00B70 |
IntegrationID
N/A 124175 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 6.00 mm | Durometer N/A 70 | Inside Diameter N/A 70.00 mm | Product Guides N/A Seal Guides |
| 70 X 6 B-90 |
IntegrationID
N/A 124176 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 6.00 mm | Durometer N/A 90 | Inside Diameter N/A 70.00 mm | Product Guides N/A Seal Guides |
| 71 X 6 B-70 |
IntegrationID
N/A 124177 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 6.00 mm | Durometer N/A 70 | Inside Diameter N/A 71.00 mm | Product Guides N/A Seal Guides |

